Double-filler coupled sewage biological treatment method

A biological treatment, dual technology, applied in the direction of sustainable biological treatment, biological water/sewage treatment, special treatment goals, etc., can solve the problems of single adhesive filler, no improvement of sludge characteristics, etc., to save investment in technological transformation, Effect of improving settling performance and reducing sludge production

Inactive Publication Date: 2017-10-10
JILIN JIANZHU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although the various fillers developed and applied at present have different shapes and materials, most of them are single adhesive fillers. However, in the activated sludge sewage treatment system, how to improve and improve the activity of activated sludge in the sewage biological treatment process is of great importance to ensure sewage treatment Effects matter

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] When performing technical transformation on biological treatment structures represented by SBR systems:

[0011] 1. Add a certain amount of suspended fluidized filler to the reactor of the SBR system. The dosage can be determined according to the characteristics of the actual sewage and the structure of the reactor. The general volume ratio is 10%~30%, and the SBR system The reactor should adopt the microporous ancient style aeration system; the suspended fluidized filler added is a spherical three-dimensional hollow filler with an average particle size of about 10-20mm, which is formed by high-quality copolymer materials at one time, and the outer surface contains rich The void structure has a specific gravity of about 1.

[0012] 2. Add a certain amount and a certain size of humic biological filler to the SBR system. The dosage can be determined according to the characteristics of the actual sewage and the structure of the reactor. Generally, the volume ratio is 3%~10...

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Abstract

The invention particularly relates to a double-filler coupled sewage biological treatment method, belonging to the technical field of sewage treatment in environmental engineering science. According to the method, two biological fillers with different action mechanisms are added into a reactor of an SBR sewage treatment system to generate the double-filler coupled biological treatment effect, thereby increasing and enriching the biomass and the species of various microbial florae, and constituting the relatively stable composite biological treatment system in which attached-growth microbes and suspended-growth activated sludge coexist; and under the biochemical actions of the humic biological filler, the suspended-growth common activated sludge in the SBR system is converted into humic activated sludge with higher nitrogen and phosphorus removal capacity and lower sludge proliferation speed. The method is simple and feasible, has the advantages of lower investment and obvious effects, is capable of improving the properties of the activated sludge in the treatment system, enhancing the sewage treatment effect and lowering the sludge yield, and effectively inhibits the odor of the sludge on the premise of implementing in-situ sludge reduction.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment in the discipline of environmental engineering, and in particular relates to a method for biological treatment of sewage by adopting double filler coupling biological treatment for a sewage biological treatment system. Background technique [0002] Water pollution and water resource shortage are important problems facing society today. How to effectively treat various domestic sewage and industrial wastewater to meet the discharge standards is one of the keys to solving the problem. The activated sludge method has the advantages of high treatment capacity, low cost and good effluent quality, and is the most widely used sewage treatment technology. In recent years, the technology of activated sludge method has made remarkable research progress, and various new and improved treatment technologies of activated sludge method have appeared, and have been widely used in the construction of urba...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/12C02F3/10
CPCC02F3/109C02F3/1263C02F3/1268C02F2303/02C02F2303/06Y02W10/10
Inventor 尹军吴思月赵可崔星华
Owner JILIN JIANZHU UNIVERSITY
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